/**
 * Created by Administrator on 2016/6/13.
 */
define(["jquery","frozen"],function () {
        function base64decode(str){
            var c1, c2, c3, c4;
            var i, len, out;
            len = str.length;
            i = 0;
            out = "";
            while (i < len) {
                /* c1 */
                do {
                    c1 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
                }
                while (i < len && c1 == -1);
                if (c1 == -1)
                    break;
                /* c2 */
                do {
                    c2 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
                }
                while (i < len && c2 == -1);
                if (c2 == -1)
                    break;
                out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));
                /* c3 */
                do {
                    c3 = str.charCodeAt(i++) & 0xff;
                    if (c3 == 61)
                        return out;
                    c3 = base64DecodeChars[c3];
                }
                while (i < len && c3 == -1);
                if (c3 == -1)
                    break;
                out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));
                /* c4 */
                do {
                    c4 = str.charCodeAt(i++) & 0xff;
                    if (c4 == 61)
                        return out;
                    c4 = base64DecodeChars[c4];
                }
                while (i < len && c4 == -1);
                if (c4 == -1)
                    break;
                out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
            }
            return out;
        }
    return base64decode;
});